I was given Allegra-D and I took it for a week. I thought I was having sinuse problems. Well, here I am with new symptoms! Instead of the headache being in my forehead area it's on one side of my head and I have pain and stiffness in my neck as well as pain and numbness in my left arm. The headache is nagging and nothing I take seems to get rid of it. Can someone please help me!!!